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Polygonum

About: Polygonum is a research topic. Over the lifetime, 1230 publications have been published within this topic receiving 12765 citations.


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Journal ArticleDOI
TL;DR: In this paper, a fungus was identified as Candida glabrata using morphology, physiology, biochemistry, and molecular biology testing methods, and the results showed that the minimum inhibitory concentrations (MIC80) of Cortex phellodendri was 0.25μg/μL.

5 citations

Journal ArticleDOI
TL;DR: It is revealed that Polygonum cuspidatum could prevent the pathological process of hyperuricemia by regulating eighteen potential biomarkers associated with purine metabolism, tryptophan metabolism, tricarboxylic acid (TCA) cycle, phenylalanine metabolism), fatty acid metabolism, arginine and proline metabolism, valine metabolism and tyrosine metabolism.
Abstract: A urinary metabolomics study based on ultra-performance liquid chromatography-electrospray ionization quadruple time-of-flight/mass spectrometry (UPLC-ESI-QTOF/MS) coupled with a pattern recognition approach was conducted to study the mechanism of Polygonum cuspidatum, a traditional Chinese medicine, in treating hyperuricemic rats. Moreover, serum samples for biochemical measurements and kidney samples for histopathology were collected and measured. The results showed that a clear separation among healthy control rats, hyperuricemic rats and Polygonum cuspidatum-treated rats was achieved by using pattern recognition approaches including principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA). It revealed that Polygonum cuspidatum could prevent the pathological process of hyperuricemia by regulating eighteen potential biomarkers associated with purine metabolism, tryptophan metabolism, tricarboxylic acid (TCA) cycle, phenylalanine metabolism, fatty acid metabolism, arginine and proline metabolism, valine metabolism and tyrosine metabolism. The biochemical assay and histopathological assay confirmed that Polygonum cuspidatum could significantly reduce uric acid and showed a protective effect on kidneys of hyperuricemic rats.

5 citations

Journal ArticleDOI
TL;DR: A toad was observed using his right hind foot to aid his jaws, grasping his abdomen with his foot, and, by a little effort, getting hold of the worm in his stomach from the outside; he presently succeeded in getting the worm entirely down.
Abstract: right hind foot to aid his jaws, grasping his abdomen with his foot, and, by a little effort, getting hold of the worm in his stomach from the outside; he thus by his foot held fast to what he gained by each swallow, and presently succeeded in getting the worm entirely down. A garter-snake was observed this summer in North Conway pushing a toad down his throat by running it against clods and stones; just as the toad crowds down a locust. The amount which a toad can eat is surprising. One Tuesday morning I threw a Coreus tristis to a young toad, he snapped it up, but immediately rejected it, wiped his mouth with great energy, and then hopped away with extraordinary rapidity. I was so much amused that I gathered some more of the same bug and carried them to a favorite old toad at the northeast corner of my house. He ate them all without making any wry faces. I gathered all that I could find oil my vines, and he ate them all, to the number of twenty-three. I then brought him some larvee of Pygcara ministra, three-quarters grown, and succeeded in enticing him to put ninety-four of them on top of his squash bugs. Finding that his virtue was not proof against the caterpillars when I put them on the end of a straw and tickled his nose with them, he at length turned and crept under the piazza, where he remained until Friday afternoon, digesting his feast. A gentleman having read this paper told me he had seen the toad tuck in the last inch of an earth worm with his hand, European fashion. I then remembered that I have several times seen our toad put the last quarter-inch of earthworms in with his hand; but never saw him take his hand to a locust.

5 citations

Journal ArticleDOI
TL;DR: The agar diffusion method was used to determine the antimicrobial activities of Euphorbia hirta (EH) and Polygonum plebeium (PP) against S.aureus , B39; pH 5 was more effective against MRSA, B39 and anti MRSA spots were identified as Hydroquinone and O-coumaric acid.
Abstract: The agar diffusion method was used to determine the antimicrobial activities of Euphorbia hirta (EH) and Polygonum plebeium (PP) against S.aureus , B39. Ethyl acetate extract of Euphorbia hirta (EH) and Polygonum plebejum (PP),was the most effective solvent. MIC of plant extract Polygonum plebeium (PP) and Euphorbia hirta (EH) was 25mg/ ml. The antimicrobial activity of ethyl acetate extract of E. hirta (EH) and P. plebeium (PP) was more effective when incubated at 25°C for 10 min with MRSA, B39; pH 5 was more effective against MRSA, B39. Light condition for 24hr was effective against MRSA, B39; Static condition had slight effectiveness against MRSA, B39. Xylose exhibited the highest activity on MRSA, B39; no amino acids, metallic ions and vitamins were effective. Ethyl acetate extract of E. hirta (EH) was subjected to column chromatography and monitored with TLC, 5 spots were detected. Anti MRSA spots were identified as Hydroquinone and O-coumaric acid.

5 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202333
2022109
202114
202037
201937
201856